Book digitized by Google and uploaded to the Internet Archive by user tpb.
Imprint varies. Vol. 10-31, Printed by T.C. Hansard for Longman, Hurst, Reese Orme & Co., [etc.]; v. 32-33, London : Longmans, Hurst, Reese, Orme, Brown & Green, [etc.]
"... When in 1808 William Cobbett projected a new edition of the State Trials, he secured Howell as editor. Howell carried the work from the first volume (1809) to the twenty-first (1814), taking over from Cobbett as proprietor in 1811. ..." G. Godwin, rev. J. Harris. "Howell, Thomas Bayly", in Oxford DNB, data base, 30 Oct. 2006
" ... Thomas Howell took over from his father the editing of the State Trials, completing the series with twelve volumes in as many years (vols. 22-33, 1815-26). ..." G. Godwin, rev. J. Harris. "Thomas Jones Howell", in Oxford DNB, data base, 30 Oct. 2006